This content is not available in your preferred language.

The content is shown in another available language. Your browser may include features that can help translate the text.

“Undefined Symbol” Error at FP_Open in LabWindows™/CVI™

Updated Oct 7, 2019

Reported In

Software

  • LabWindows/CVI Base

Other

  • NI FieldPoint

Issue Details

When I try to compile my FieldPoint LabWindows/CVI project, I get an "Undefined Symbol" error at FP_Open. It seems as though LabWindows/CVI can’t find the FieldPoint library. How can I troubleshoot this error? 

Solution

There are a few troubleshooting steps to go through: 
 
  1. Make sure that the Debug mode in LabWindows/CVI is set correctly. In Build»Configuration, verify that you are in Debug mode and not Debug64.
  2. Try manually adding the FieldPoint.fp file to the project. To do this, right-click Libraries»Add, then navigate to the FieldPoint.fp file. This can help if multiple versions of LabWindows/CVI were installed on the same PC at the time of the original FieldPoint installation, as the driver install only applies FieldPoint support to the most recent version of LabWindows/CVI on that machine.
  3. If this does not work, uninstall and reinstall the FieldPoint driver.
  4. If available, try upgrading to a newer version of LabWindows/CVI and linking the FieldPoint.fp library directly to shared/cvi/bin.
  5. Completely uninstall LabWindows/CVI and the FieldPoint driver, and then reinstall LabWindows/CVI, then the FieldPoint driver.
If you have gone through all of these steps and are still seeing the error, contact National Instruments for support.
 

WAS THIS ARTICLE HELPFUL?

Not Helpful